rndc-confgen(8)

RNDC-CONFGEN(8)               BIND9               RNDC-CONFGEN(8)

NAME

     rndc-confgen - rndc key generation tool

SYNOPSIS

     rndc-confgen [-a] [-A algorithm] [-b keysize] [-c keyfile]
                  [-h] [-k keyname] [-p port] [-r randomfile]
                  [-s address] [-t chrootdir] [-u user]

DESCRIPTION

     rndc-confgen generates configuration files for rndc. It can
     be used as a convenient alternative to writing the rndc.conf
     file and the corresponding controls and key statements in
     named.conf by hand. Alternatively, it can be run with the -a
     option to set up a rndc.key file and avoid the need for a
     rndc.conf file and a controls statement altogether.

OPTIONS

     -a
         Do automatic rndc configuration. This creates a file
         rndc.key in /etc (or whatever sysconfdir was specified
         as when BIND was built) that is read by both rndc and
         named on startup. The rndc.key file defines a default
         command channel and authentication key allowing rndc to
         communicate with named on the local host with no further
         configuration.

         Running rndc-confgen -a allows BIND 9 and rndc to be
         used as drop-in replacements for BIND 8 and ndc, with no
         changes to the existing BIND 8 named.conf file.

         If a more elaborate configuration than that generated by
         rndc-confgen -a is required, for example if rndc is to
         be used remotely, you should run rndc-confgen without
         the -a option and set up a rndc.conf and named.conf as
         directed.

     -A algorithm
         Specifies the algorithm to use for the TSIG key.
         Available choices are: hmac-md5, hmac-sha1, hmac-sha224,
         hmac-sha256, hmac-sha384 and hmac-sha512. The default is
         hmac-md5 or if MD5 was disabled hmac-sha256.

     -b keysize
         Specifies the size of the authentication key in bits.
         Must be between 1 and 512 bits; the default is the hash
         size.

     -c keyfile
         Used with the -a option to specify an alternate location
         for rndc.key.

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RNDC-CONFGEN(8)               BIND9               RNDC-CONFGEN(8)

     -h
         Prints a short summary of the options and arguments to
         rndc-confgen.

     -k keyname
         Specifies the key name of the rndc authentication key.
         This must be a valid domain name. The default is
         rndc-key.

     -p port
         Specifies the command channel port where named listens
         for connections from rndc. The default is 953.

     -r randomfile
         Specifies a source of random data for generating the
         authorization. If the operating system does not provide
         a /dev/random or equivalent device, the default source
         of randomness is keyboard input.  randomdev specifies
         the name of a character device or file containing random
         data to be used instead of the default. The special
         value keyboard indicates that keyboard input should be
         used.

     -s address
         Specifies the IP address where named listens for command
         channel connections from rndc. The default is the
         loopback address 127.0.0.1.

     -t chrootdir
         Used with the -a option to specify a directory where
         named will run chrooted. An additional copy of the
         rndc.key will be written relative to this directory so
         that it will be found by the chrooted named.

     -u user
         Used with the -a option to set the owner of the rndc.key
         file generated. If -t is also specified only the file in
         the chroot area has its owner changed.

EXAMPLES

     To allow rndc to be used with no manual configuration, run

     rndc-confgen -a

     To print a sample rndc.conf file and corresponding controls
     and key statements to be manually inserted into named.conf,
     run

     rndc-confgen

SEE ALSO

ISC                  Last change: 2013-03-14                    2

RNDC-CONFGEN(8)               BIND9               RNDC-CONFGEN(8)

     rndc(8), rndc.conf(5), named(8), BIND 9 Administrator
     Reference Manual.

AUTHOR

     Internet Systems Consortium, Inc.

COPYRIGHT

     Copyright 8c9 2004, 2005, 2007, 2009, 2013-2016 Internet
     Systems Consortium, Inc. ("ISC")
     Copyright 8c9 2001, 2003 Internet Software Consortium.

ISC                  Last change: 2013-03-14                    3